Austria-Hungary
Austria-Hungary on Serbia.
Austria-Hungary.
Austria-Hungary
austria declared war on Serbia in 1914
I presume you mean 'started'. Germany and Austria wre the first to declare war.
Germany actually did not encourage Austria-Hungary to declare with Serbia since it was not the first country to declare war on another during World War I. Austria-Hungary and Serbia were the first countries to enter World War I, only weeks before Germany joined in to help Austria-Hungary and the other Central Powers.
1866 during the AUSTRO-PRUSSIAN WAR NEW RESPONDENT Prussia invaded Austria for the first time when Frederick the Great, King of Prussia started the invasion of Silesia on Dec.16,1740.
Because Russia Invaded Austria.
Austria-Hungary declared war on Serbia and it pretty much snowballed from there.
1914
The first Central Power to declare war during World War I was Austria-Hungary. On July 28, 1914, Austria-Hungary declared war on Serbia following the assassination of Archduke Franz Ferdinand. This declaration set off a chain reaction of alliances and declarations of war among the major powers of Europe.